[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
52 -INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM(SRS) > 52B-SUPPLEMENTAL RESTRAINT SYSTEM (SRS) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > DTC B1404 SYSTEM INSIDE SRS-ECU
Code No.B1404: Driver's air bag module (squib) activating circuit short-circuited
Code No.B1405: Driver's air bag module (squib) activating circuit open-circuited
Code No.B1414: Passenger's (front) air bag module (squib) activating circuit short-circuited
Code No.B1415: Passenger's (front) air bag module (squib) activating circuit open-circuited
Code No.B1424: Side-airbag module (RH) (squib) activating circuit short-circuited
Code No.B1425: Side-airbag module (RH) (squib) activating circuit open-circuited
Code No.B1434: Side-airbag module (LH) (squib) activating circuit short-circuited
Code No.B1435: Side-airbag module (LH) (squib) activating circuit open-circuited
Code No.B1444: Curtain air bag module (RH) (squib) activating circuit short-circuited
Code No.B1445: Curtain air bag module (RH) (squib) activating circuit open-circuited
Code No.B1454: Curtain air bag module (LH) (squib) activating circuit short-circuited
Code No.B1455: Curtain air bag module (LH) (squib) activating circuit open-circuited
Code No.B1466: Analog G-sensor malfunction
Code No.B1478: SRS-ECU backup capacitor circuit voltage too High
Code No.B1479: SRS-ECU backup capacitor circuit voltage too Low
Code No.B1496: SRS-ECU non-volatile memory (EEPROM)
Code No.B1497: SRS-ECU application specific integrated circuit (for frontal activation)
Code No.B1498: SRS-ECU abnormal condition in ROM or RAM
Code No.B1547: Passenger’s air bag cut off activating circuit
Code No.B1557: SRS-ECU application specific integrated circuit
Code No.B1588: SRS-ECU backup capacitor system (Up converter unit)
Code No.B1589: SRS-ECU backup capacitor system (Down converter unit)
Code No.B1590: SRS-ECU backup capacitor system (capacitance big)
Code No.B1591: SRS-ECU backup capacitor system (capacitance small)
Code No.B1594: SRS-ECU application specific integrated circuit (for side activation)
Code No.B1607: Seat belt pre-tensioner (driver’s side) (squib) activating circuit short-circuited
Code No.B1608: Seat belt pre-tensioner (driver’s side) (squib) activating circuit open-circuited
Code No.B1629: Lap pre-tensioner (squib) activating circuit short-circuited
Code No.B1630: Lap pre-tensioner (squib) system activating circuit open-circuited
Code No.B1635: Knee air bag (squib) activating circuit short-circuited
Code No.B1636: Knee air bag module (squib) activating circuit open-circuited
Code No.B1657: Rear seat belt pre-tensioner (RH) (squib) activating circuit short-circuited
Code No.B1658: Rear seat belt pre-tensioner (RH) (squib) activating circuit open-circuited
Code No.B1663: Rear seat belt pre-tensioner (LH) (squib) activating circuit short-circuited
Code No.B1664: Rear seat belt pre-tensioner (LH) (squib) activating circuit open-circuited
Code No.B1674: Seat belt pre-tensioner (passenger’s side) (squib) activating circuit short-circuited
Code No.B1675: Seat belt pre-tensioner (passenger’s side) (squib) activating circuit open-circuited
 
 
DIAGNOSIS CODE SET CONDITIONS
  • These diagnosis code are set when a fault is detected in the SRS-ECU. The most likely causes for this code to be set are shown in the table below:
PROBABLE CAUSE
  • Malfunction of the SRS-ECU
Code No.Part/Circuit integral to SRS-ECUTrouble causes
B1404Driver's air bag module (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1405
  • Open circuit in the squib ignition drive circuit
B1414Passenger's (front) air bag module (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1415
  • Open circuit in the squib ignition drive circuit
B1424Side-airbag module (RH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1425
  • Open circuit in the squib ignition drive circuit
B1434Side-airbag module (LH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1435
  • Open circuit in the squib ignition drive circuit
B1444Curtain air bag module (RH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1445
  • Open circuit in the squib ignition drive circuit
B1454Curtain air bag module (LH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1455
  • Open circuit in the squib ignition drive circuit
B1466Analog G-sensor (front air bag)
  • When the analogue G-sensor is not operating
  • When the characteristics of the analogue G-sensor are abnormal
  • When the output from the analogue G-sensor is abnormal
B1478Capacitor
  • Voltage at the capacitor terminal is higher than the specified value for five seconds or more
B1479
  • Voltage at the capacitor terminal is lower than the specified value for five seconds or more (This is not detected if diagnosis code B1476 indicating battery positive voltage drop has been set).
B1496Non-volatile memory (EEPROM)
  • When EEPROM communication error occurs
B1497Application specific integrated circuit (for frontal activation)
  • When the application specific integrated circuit (frontal activation) are abnormal
B1498ROM or RAM
  • When the ROM or RAM are abnormal
B1547Passenger’s air bag cut off activating circuit (squib ignition drive circuit)
  • Cut OFF (squib ignition drive circuit)
B1557Application specific integrated circuit
  • When the application specific integrated circuit are abnormal
B1588Backup capacitor systemBackup capacitor up converter
B1589Backup capacitor down converter
B1590Backup capacitor capacitance big
B1591Backup capacitor capacitance small
B1594Application specific integrated circuit (for side activation)
  • When the application specific integrated circuit (side activation) are abnormal
B1607Seat belt pre-tensioner (driver side) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1608
  • Open circuit in the squib ignition drive circuit
B1629Lap pre-tensioner (passenger side) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1630
  • Open circuit in the squib ignition drive circuit
B1635Knee air bag module (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1636
  • Open circuit in the squib ignition drive circuit
B1657Rear seat belt pre-tensioner (RH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1658
  • Open circuit in the squib ignition drive circuit
B1663Rear seat belt pre-tensioner (LH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1664
  • Open circuit in the squib ignition drive circuit
B1674Seat belt pre-tensioner (passenger side) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
B1675
  • Open circuit in the squib ignition drive circuit
 
 
DIAGNOSIS PROCEDURE
Replace the SRS-ECU.